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- 共用题干 Batteries Built by VirusesWhat do chicken pox,the common cold,the flu,and AIDS have in common?...
- 共用题干 Energy and Public LandsThe United States boasts substantial energy resources. Federal lands pr...
- Jane said that she couldnt tolerate the long hours.
- 共用题干 Unpopular Subjects?Is there a place in todays society for the study of useless subjects in our...
- 共用题干 Black HolesMost scientists agree that black holes exist but are nearly impossible to locate.A ...
- He shifted his position a little in order to alleviate the pain in his leg.
- 共用题干 Cloning（克隆）:Future Perlect?1 A clone is an exact copy of a plant or animal produced from any o...
- 共用题干 Sharks Perform a Service for Earths WatersIt is hard to get people to think of sharks as anyth...
- This table is strong and durable.
- 共用题干 Learn about Light1 .Ancient civilizations were amazed by the existence of light for thousands ...